There’s information in this post in on dimensions and size - this should be showing up in the main documentation later today once we roll out the new update to the docs. Note that your images will be converted to JPG for display in the card for reasons of performance.

The dimensions in the documentation (which is now updated as per your last post) still appear to not work and cause the images to be ‘cut-off’.

I am also still suffering from really bad quality due to your compression rates. How is this possible on an image that is barely 11kb, in PNG format and within the image dimension/resolution specified?